Tread pattern groove adhesive tape filling vulcanization process for retreading tire

Abstract

The invention discloses a tread pattern groove adhesive tape filling vulcanization process for retreading a tire, which comprises the following steps of: (1) selecting an unvulcanized standby adhesive tape according to the volume of a tread pattern groove; coating silicon oil on the inner wall of the tread pattern groove; squeezing the standby adhesive tape into the groove; mounting a packaging sleeve, pumping vacuum and vulcanizing in a tank; after the tire is vulcanized, taking out the pattern adhesive tape; (2) suspending the pattern adhesive tape on a rack and sticking a label in the suspending position; (3) selecting the pattern adhesive tape according to the model and specification of a tread pattern; filling the pattern adhesive tape into the tread pattern groove; fixing the pattern adhesive tape in the tread pattern groove; (4) mounting the packaging sleeve, pumping vacuum and vulcanizing in a tank. The invention adopts the pattern adhesive tape which can be recycled in the tread groove, has long service life, vulcanization temperature and pressure resistance, certain elasticity and plasticity, convenient operation, easy acquisition and low cost and can exactly fill the groove, not only can reduce the production cost and improve the bonding quality of the tread, but also can improve the appearance and the abrasion resistant quality of the tire.

Description

technical field

[0001] The invention relates to a tire retreading process, in particular to a retreading vulcanization process of a pre-vulcanized tread method. Background technique

[0002] In the prior art, the tire retreading vulcanization process of the pre-cured tread method mostly adopts the tank vulcanization method: an outer envelope is installed on the outside of the tire, an inner tube or an inner envelope is installed inside the tire, and the air is exhausted from the contact interface between the envelope and the tire surface, basically to Vacuum state, then put into tank and vulcanize under proper air pressure (about 0.6Mpa) and temperature (110℃~120℃).

[0003] The envelope is a process consumable, which is made by professional manufacturers using expensive butyl rubber materials. Butyl rubber has poor elasticity, and has a large permanent deformation after being stretched in a hot state, and has the weakness of poor recovery after deformation. In the current ...

Examples

Embodiment Construction

[0020] Select patterned rubber strips that can be reused many times and have a long service life, can just fill the grooves, are resistant to vulcanization temperature and pressure, have certain elasticity and plasticity, are easy to fill and take out, are easy to obtain and low in cost as tread grooves for retreaded tires filler. The pattern rubber strip includes by weight percentage: natural standard rubber: 60, styrene-butadiene rubber 1500: 40, CaCO 3 : 15, carbon black N754: 20, zinc oxide 99.5% (zinc oxide with a purity of 99.5%): 5, stearic acid: 2.5, antioxidant 4010: 1.2, antioxidant RD: 1.0, antioxidant 1010: 0.8, Engine oil: 6, sulfur: 1.8, accelerator M: 1, accelerator D: 1.25 and accelerator TMTD: 0.3.

[0021] Production of spare rubber strips for fillers: 1) Rubber mixing, using an open rubber mixing machine for plasticizing and mixing raw rubber according to conventional procedures; 2) Forming, using an extruder to extrude rubber strips with a diameter of 8-13...

technical field

[0001] The invention relates to a tire retreading process, in particular to a retreading vulcanization process of a pre-vulcanized tread method. Background technique

[0002] In the prior art, the tire retreading vulcanization process of the pre-cured tread method mostly adopts the tank vulcanization method: an outer envelope is installed on the outside of the tire, an inner tube or an inner envelope is installed inside the tire, and the air is exhausted from the contact interface between the envelope and the tire surface, basically to Vacuum state, then put into tank and vulcanize under proper air pressure (about 0.6Mpa) and temperature (110℃~120℃).

[0003] The envelope is a process consumable, which is made by professional manufacturers using expensive butyl rubber materials. Butyl rubber has poor elasticity, and has a large permanent deformation after being stretched in a hot state, and has the weakness of poor recovery after deformation. In the current ...

Examples

Embodiment Construction

[0020] Select patterned rubber strips that can be reused many times and have a long service life, can just fill the grooves, are resistant to vulcanization temperature and pressure, have certain elasticity and plasticity, are easy to fill and take out, are easy to obtain and low in cost as tread grooves for retreaded tires filler. The pattern rubber strip includes by weight percentage: natural standard rubber: 60, styrene-butadiene rubber 1500: 40, CaCO 3 : 15, carbon black N754: 20, zinc oxide 99.5% (zinc oxide with a purity of 99.5%): 5, stearic acid: 2.5, antioxidant 4010: 1.2, antioxidant RD: 1.0, antioxidant 1010: 0.8, Engine oil: 6, sulfur: 1.8, accelerator M: 1, accelerator D: 1.25 and accelerator TMTD: 0.3.

[0021] Production of spare rubber strips for fillers: 1) Rubber mixing, using an open rubber mixing machine for plasticizing and mixing raw rubber according to conventional procedures; 2) Forming, using an extruder to extrude rubber strips with a diameter of 8-13...